Ice-cream freezer.



T. L. VALERIUS. ICE CREAM FREEZER. APPLIOATIOE/ FILED JULY 28,1906.

Patented Sept. 29, 1908.

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Ll, I U QQW &w 1 N R witnesses T. L. VALERIUS. ICE CREAM FREEZER.

APPLICATION FILED JULY 28,1906.

Patented Sept. 29, 1908.

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lnvenfor lzwdvrel. Zikrz'zw;

witnesse s special reference to improvements in ice constantly flowingstreamof custard "may e tu w a may mam-,

msonoiin' L. VALER'I'US, [or roar- PAGKAGE MFG.columnar,orcn'ioaeo,"ILLINOIS, ACORPORATION or ILLINOIS.

fires-can rannzsaf itknown, that I, Trinonon'n L. VA E RIUS, a citizenof. Fort Atkinson,"county of- Jefierson, and State of Wisconsin, haveinvented a certain riew, useful, and Improved Ice-Cream Freezer, ofwhichthe'following is a'full, clear, and exact description, such-as:will'enable others'skilled in the art to which it appertains tomake anduse the same.

My invention relates. to the art of manusists, broadly, in an ice creamfreezer com prising an externally cooled freezing can,

aving its to formed to discharge semi frozen liquid t erefrom, incombinationwith a rotary dasher provided in said can, 'and means forcontinuously feeding custard to said can. And further, myxnventionconticularly pointed out in stood by represent the freezingcans. su

' tails and-.in which sists in a vpluralityof ice cream freezers oftheabove description, arrangedin series, whereby the process of onethereof, is completed in another; p My invention also consists invarious departs, all as hereinafter'described, and parthe' claims.

My inventionwill be more readily underreference to drawings forming apart of this specification,

.' Figure I is a vertical section of an ice cream freezer embodying mylnventlon, and

Fig, II is aplan view thereof;

' Referring to the-drawings,A, B, and C A and Bare stantially identicalin form. "C diflers from the others in the particulars hereinafterexplained. I

a The freezing cans areprovided with jackets A, B, C, respectively, andthese jackets or spaces are-kept full of freezing fluid, such as brine,circulatedthrough ipipessD and E,

- connected wi-tha brine tank and pump (not shown).

A represents the custard 'inlet or 'supply connection of the freezer A";"This ls'preferably arrangedto supply the custard'tothe 1 {Specificationof Letters Patent. v. a s-teem site as, 1906; seen in, 32 ,225.

continua freezing, begu i in of construction and in combinations oftheaccompanying be interrupted.

Patented Sept". 2a, 1908.

'AT K IN S ON, WISCONSIN,- ASSIGN'OR TO THE CREAMERY bottom ofthefreezer can,but, if desired, the

arrangement may be such as to discharge the custard into the open' topof the freezing can. The cans rest -;upon a frame F,- having as manysteps as there are cans, and the frozen liquid from the upper can isdischar ed into' intermediate can, an thence the top of the into the topof the last can of the series.

G represents the tangential discharge spout of theupper freezing can, Ha similar tangential spout on the intermediate can,

and I thedisc'harge device of the lower can.

. The discharge device, comprises a trough I,

provided with an incline spout I and a world or screw conveyer I. Thelatter is constructed to convey the frozen cream from the top of the cantothe spout 1.

Each can is provided with a-centra'l dasherdriving shaft J, whichextends through a stuffing box in the bottom of said cam} All of'theseshafts are driven from a singlepower shaft K, arranged in the lower partof the frame F," beveled gearsbeing' employed as The dashers are mountedupon re spective shafts J and those belongin to the The e'ezing.

shown.

cans A and B are identical.

can C, being ofthe same height, its dasher is of less height, to admitthe conveyer 1; Each dasher co rises a central tube or sleeve-L, twopivote, scrapers L, of inclined blades, L,

a suitable clutch at its lower end, a pinJ in the shaft, fitted to anotch or recess in the lower-end of the sleeve L.

and a large number borne by said sleeve." The dasher is connected withthe shaft,J by preferably i The conveyer I is driven from the shaft K bymeans of a belt M and suitable connected with the shaft'by a clutcdischarge. of cream from the lower can may ulleys, N on the latter. IBythrowing outtheclutch, the

O, 0"rePresent y'P drawing ofi theconten'ts of the freezers A and Bwhenit is; desired-to em ty them. The can 0 has a like drain cock, f 1 The 0eration of m novel ice cream freezer freezer'is ready for use. A supplyofcustard The ashers having been" set in ope rati'o'n, and the'fiow ofbrine 'throu h the" jackets having been established, the

is then admitted to 'the up er can through theinlet A 0n entering't ecan, the tard is agitated by the rotatin beingforced into contact withthe chilled walls of" the can, is partially frozen. The

dasher, and

tendency of the frozen cream is to rise to the top; hence, by the timethe can has been artially filled with custard, the arti-ally frozencream will begin to discharge rom the top of the can through the spoutG. This artially frozen liquid, falling into the second reezer, issubjected to further refrigeration and agitation, and upon leaving theto of the second freezer is subjected to the fina action of the thirdfreezer. As the frozen cream rises to the top of the last freezing canor vessel, it is gently conveyed therefrom by the rotating conveyer I,previously started into motion by the throwing of the clutch N. Thefinished ice cream slides down or through the chute or spout I into apacking vessel or mold placed to receive it.

The entire operation of the apparatus 18 at all times within the view ofthe operator, who, by controlling the flow of custard to the upermostcan, and the discharge. of cream rom the lowermost can, may insure theuniform production of ice cream of the best quality.

It is obvious that the process of continuously freezing or manufacturingice cream may be conducted in a sin le freezing can of the foregoingdescription, but in such cases, the capacity of the freezer will beless, as the entire process must be carried out in a single freezer.vWhere a single can is thus employed, I prefer to utilize the rotaryeonveyer Ias the means for discharging the semi fro zen liquid, theeffect of such conveyera'being' to discharge the cream withoutdefiatingit, and in the best possible condition for storage or immediatesale.

1 It is obvious that various modifications of my invention will readilysuggest themselves to one skilled in the art, and I therefore do I notconfine the invention to the specific structure herein shown anddescribed.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent 1. In an ice cream freezer, an upright externallycooled stationary freezing can open at the top and having a dischargeopening in its upper'edge, in combination with means for supplyingliquid to said can, a dasher within said can and means for rotating saiddasher, substantially as described.

' 2. In an ice ereamfreezer, an externally cooled upright cylindricalcan to contain the liquid to be frozen and open at the top for thedischarge of frozen liquid, in combination with means for continuouslysupplying liquid thereto, a dasher having a suitable scraper andrevoluble in said can, and means at the top of the can for carrying offthe semi frozen liquid, substantially as described.

3. In an ice cream freezer, an externally cooled upright freezing can,having a spout extendin from its upper edge for the discharge 0 frozenliquid, in combination with means for su' plying liquid to said can, anda suitable das er revoluble in said can, substantially as described.

4. In an ice cream freezer, an upright nonrotative cylindrical can, incombination with a discharge spout leading from the upper edge of thecan, means for refrigeratmgand agitating the contents of said can, and aiquid supply spout, substantially as described...

5. In an ice cream freezer, an upright nonrotative cylindrical can, openat the top, in combination with means for chillin the walls of said can,a rotary dasher provi ed in said can, means for continuously supplyinliquid to be frozen, and driven mechanism or continuously removing thefrozen liquid from the top of said can, substantially as described.

6. In an ice cream freezer, an upright cylindrical freezing can, open atthe top, in combination with means for chilling the contents of saidcan, a suitable dasher in said can, means for feeding liquid to said canand means transversel operable in the top of said can for withdrawlngand discharging frozen liquid therefrom, substantially as described.

7. In an ice cream freezer, an upright cylindrieal freezing can, open atthe top, in combination with means for chilling the contents of saidcan, a suitable dasher in said can, means for feeding liquid to said canand a rotary conveyer transversely operable in the upper part of saidcan for wit idrawing and dlschar ing frozen liquid therefrom,substantiafiy as described.

8. In an ice cream freezer, an upright cylindrical freezing can open atthe top, in combination with means for chilling the contents of saidcan, a suitable dasher in said can, means for feeding liquid to saidcan, and a rotary screw conveyer transversely o erable in the upper partof said can for disc arging frozen liquid therefrom, substantially asdescribed.

9. In an ice cream freezer, an upright cylindrical can to contain theliquid to be frozen, in combination with means for chilling the walls ofsaid can, a dasher arranged for rotation within said can, means forrotating said, dasher, means for supplying liquid to said can, afrozen-liquid discharging device in the upper part of said can, andmeans for rotating said device, substantially as described.

10. In an ice cream freezer, an upri ht cylindrical can to contain theliquid to be frozen, in combination with means for chilling the walls ofsaid can, a dasher operable within said can, means for continuouslysupplying liquid to said can, and means for removing the frozen liquidtransversely from the u per means forsupplying custard to then the topof each can for discharging frozen next can, as and 'upper can to thetop 0 a lower can, aiid means for discharging frozen liquidfrom. the

I top. of said lower can,substantially as described; v

13. In an ice cream freezer, a plurality of externally cooled freezingcans, open at the top andzarranged at different heights, in com- 1bination with dashers provided in said cans,

can, and incline means for supplying liquid to the upper can, means fortransferring partially frozen liquid fromsaid-upper can to the lowercan, and

, "means for discharging frozen liquid from the top of saidlower can,substantially as described. T v I 14. In an ice cream freezer, aplurality of externally cooled freezing cans 0 en at the top andarranged at different eights, in combination :with suitably drivenshafts, ex-

tending through the bottoms of said cans,

suitable dashers onjsaid shafts, meansfor continuously supplying li uidto the upper "spouts eading from the tops of said cans, whereb thepartially frozen liquid is transferred om one can to the nextin/the'series, substantially as described. 11.5. Inan ice cream freezer,a non-rotative,

w is open at the top, in combination with a dasher ,o erable in saidcan, a,.;transverse trough or not leading from the u .per edge v of saidcan, a screw conveyer provi ed there- 1n above sa d dasher, and meansfor rotatingl said dasher and said conveyer, substantia ly as described.I

16. In an ice cream freezer, a plurality of upright freezing cans, eachprovlded with a.

top, 1n combination with means for continuou'sly suppl 'ng liquid to theupper can, and

means for c 'lling and agitating the contents of said cans, substantialas described.

17.- Inan ice cream eezer, an upright freezing can open at the top, incombination with a rotar dasher in sald can, means for feeding the lquid to be frozen to said can, a

screw conveyer transversely arranged above. 'sald dasher, and anlncllned dehvery spout whereto said conveyer delivers the frozen liquid,substantially as described.

18. In an ice cream freezer, a plurality of v externally coolednon-rotative freezing cans arranged at different heights and open at thetop, in combination with dashers in said cans, means for suppl 'ngliquid, to the upper can, means for trans erring partially frozen liquidfrom the top of said upper can to the next can, the lowermost can havinga discharge opening at the to and discharging mechanism operating in t eup er part and the discharge opening of the owermost can, said mechanismadapted to withdraw the frozen li uid transversel from said lowermostcan, su stantially as escribed.

19. In an icecream freezer, an open freezing can and suitable, means forchilling the contents of the can in combination with agi-,

v conveyor part y in said trough and partly in the upper art of said canand adapted to ently wit draw, and dischar e, partially ozen cream fromthe top of t e can, substantially as described. I

In testimony whereof, I have hereunto set my hand, this 25th day ofJuly, 1906, in the presence of twosubscribing witnesses.

THEODORE L. VALERIUS. I

Witnesses IRYING HIPPENMEYER, SANFORD P. STARKS.

